Firefox 4 gets much, much faster

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Moz/FF

One of the major components essential for the future of Firefox just landed in the beta build of the browser, and it gives the open-source browser the page-rendering speed boost that it had been lacking.

Available for Windows, Mac, and Linux, Firefox 4 beta 7 introduces JagerMonkey, Mozilla's next-generation JavaScript engine that puts the browser in the same ballpark as its high-speed competitors. The old TraceMonkey engine was slow enough to no longer be in the same league as Chrome, Opera, Safari, and the Internet Explorer 9 beta.

Mozilla describes the improvements as incorporating the JagerMonkey JIT compiler into the new SpiderMonkey engine, and says that users can expect to see significantly faster start-up times, page-load speed, and JavaScript-intensive Web tasks such as running apps and playing games.

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